74ACT16623DLR Equivalent & Substitute Parts

Part Overview

The 74ACT16623DLR is a non-inverting transceiver IC manufactured by Texas Instruments, featuring 2 elements with 8 bits per element and 3-state output capability in a 48-SSOP package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The part operates within the 4.5V to 5.5V supply voltage range and maintains compatibility with standard logic voltage levels across industrial temperature ranges.

Substiute Parts

74ACT16623DLR

Texas InstrumentsIn Stock: 70574ACT16623DLR Datasheet

Current PartRFQ

SN74ACT245PWR

Texas InstrumentsIn Stock: 3994SN74ACT245PWR Datasheet

MFR RecommendedRFQ

74ACT16245DLR

Texas InstrumentsIn Stock: 431574ACT16245DLR Datasheet

Parametric EquivalentRFQ

74FCT162245ATPVCT

Cypress Semiconductor CorpIn Stock: 207574FCT162245ATPVCT Datasheet

Parametric EquivalentRFQ

CY74FCT162245TPVCT

Cypress Semiconductor CorpIn Stock: 7749CY74FCT162245TPVCT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ACT16623DLR is determined by the following critical parameters: logic type (non-inverting transceiver), number of elements (2), bits per element (8), output type (3-state), output current capability (24mA high and low), supply voltage range (4.5V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and package configuration (48-SSOP).

Substitute parts are grouped into two categories:

Parametric Equivalents maintain identical electrical and mechanical specifications, including the same 48-SSOP package, element count, and bit configuration. These parts are direct replacements with no functional or performance differences.

Functional Equivalents provide the same transceiver functionality with reduced element count (1 element instead of 2) but maintain identical bit-per-element configuration, output current, voltage supply range, and temperature operating range. These parts require circuit redesign to accommodate the reduced channel density.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement of the obsolete 74ACT16623DLR, the 74ACT16245DLR is the primary selection. This part maintains identical electrical specifications, package configuration, and element count while offering active product status and full ROHS3 compliance. Texas Instruments manufacturing ensures consistent quality and long-term availability.

The 74FCT162245ATPVCT and CY74FCT162245TPVCT from Cypress Semiconductor Corp provide parametric equivalence with identical pin counts and electrical performance. Both parts are active products suitable for new designs and ongoing production support.

The SN74ACT245PWR serves as a functional equivalent for applications where reduced channel density is acceptable. This part requires circuit redesign due to single-element configuration but maintains all critical electrical parameters and offers superior availability with active product status.

Frequently Asked Questions (FAQ)

Q: Can the SN74ACT245PWR directly replace the 74ACT16623DLR without circuit modification?

A: No. The SN74ACT245PWR contains 1 element with 8 bits, while the 74ACT16623DLR contains 2 elements with 8 bits each. Direct pin-for-pin substitution is not possible. Circuit redesign is required to accommodate the reduced channel count.

Q: What is the primary difference between parametric equivalents and functional equivalents?

A: Parametric equivalents (74ACT16245DLR, 74FCT162245ATPVCT, CY74FCT162245TPVCT) maintain identical element count, bit configuration, and package pinout. Functional equivalents (SN74ACT245PWR) provide the same transceiver logic type and electrical performance but with reduced element density, requiring circuit redesign.

Q: Are the Cypress Semiconductor parts (74FCT162245ATPVCT and CY74FCT162245TPVCT) pin-compatible with the Texas Instruments 74ACT16623DLR?

A: Yes. Both Cypress parts maintain the 48-SSOP package configuration with identical pin assignments, element count, and bit-per-element specifications. They are direct pin-for-pin replacements.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts maintain ROHS3 compliance and EAR99 export classification. The 74ACT16245DLR and SN74ACT245PWR carry explicit ROHS3 certification. Cypress parts maintain REACH unaffected status.

Q: Why is the 74ACT16623DLR classified as obsolete?

A: The 74ACT16623DLR is no longer in active production. The 74ACT16245DLR serves as the active replacement from Texas Instruments, offering identical specifications with ongoing manufacturing support.